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Lower Control Arm Installation TO k FRAME.

avidflyr

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Just installed new PTS bushings in my LCA's (64 small block Polara).What is the unloaded install angle (droop) of the LCA to the K Frame when installing ...before adding the Torsion Bars,Spindles, and Tubular Upper control Arms etc. Does the Torsion Bar size determine this angle ?....64 _392" POLY POLARA.
 
torsion bar is going to determine the ride height on preload and ride quality/handling when traversing the highway
 
I suspect he's asking what angle the LCA should be relative to the horizontal plane and/or K-frame and asking this because the torsion bars fit into the back of the LCA hex socket and he's wondering what the proper initial angle should be with the torsion bars unloaded prior to any adjustment.
 
I would install the spindles and UCAs, remove the rubber bumpers from the UCAs and let force the control arms all the way down...install the torsion bars and you're good to go.
 
Oh, I got it....they should be horizontal. Did I get it right?
 
Slide the torsion bar through the crossmember first. Before you install LCA. It makes it so much easier. Then just slide it forward into the lower control arm.
 
Talked to PST Tech Advisor and it was explained to me that the LCA bushing rubber insert is not vulcanised to the inner and outer metal bushings...so ...it can rotote freely in bounce and re bound. Therefore I just install the LCA in the horisontal position and then rotate it to the position that allows a proper T Bar installation.
Thanks to all for the help...Have a happy cruzzin Holiday (Daytona for me).
 
you don´t have to use the "horizontal position.... the LCA has to point downwards...as far as possible... ! Then you slide in the TB

If you do this while in the horizontal position....you will not be able to "preload" the TB with the adjuster screw.. because you are off by @ 30 deg. .... at the LCA. so the car will sit very very low in front....

Greetings Juergen
 
I would install the spindles and UCAs, remove the rubber bumpers from the UCAs and let force the control arms all the way down...install the torsion bars and you're good to go.
This is your BEST BET !!!
 
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